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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | seaart.ai | PicWish | Switch / compare |
|---|---|---|---|
| Background removal | 84/100 2048 × 2048 · PNG | 83/100 2048 × 2048 · PNG | Active task |
| Image compression | Not tested in topic | 73/100 JPEG · Output attached | Compare in task topic → |
| Image upscaling | 79/100 1024 × 1024 · PNG | 82/100 1280×1280 (2.5x free unwatermarked) / 2048×2048 (4.0x preview carries bottom notice watermark) · Historical description; output not attached | |
| Object removal | 86/100 2048 × 2048 · PNG | 84/100 2048 × 2048 · PNG | |
| Image generation | 83/100 WEBP · Output attached | 85/100 JPEG · Output attached | |
| Photo restoration | Not tested in topic | 56/100 JPEG · Output attached | Compare in task topic → |
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Browse this task →| Criterion | SeaArt Background removal 84/100 Seven-aspect task score SeaArt Background Remover achieves top-tier hair strand separation with 99.84% foreground recall on the 2048x2048 benchmark anchor, providing ~150 daily free Stamina and pristine 2048px watermark-free transparent PNGs with excellent commercial honesty despite requiring login and taking ~15.5s. Tested export 2048 × 2048 · PNG Historical test · 2026-11-04 | PicWish (AI Background Remover) Background removal 83/100 Seven-aspect task score Good hair handling and refinement tools are offset by login-gated downloads and HD credit costs; free previews do not imply full-size rights. Tested export 2048 × 2048 · PNG Historical test · 2026-10-16 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | SeaArt.ai Stamina and VIP subscription model · 2026-11-01 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Tier (Daily Stamina)2026-11-01 ↗ Free Free Free ~150 daily Stamina refreshed every 24 hours Base image generation, upscaling, background removal, and community models；Unused stamina resets daily; standard queue; excludes custom LoRA training；Refreshes daily, no renewal；Perpetual access Standard VIP2026-11-01 ↗ Monthly price not verified — Monthly Higher daily Stamina allowance, bonus coins, and fast-track queues Fast-track generation, concurrent tasks, and commercial licensing；Pricing visible inside account store (typically approx $9.99/mo)；Auto-renews monthly；Active during billing month 2 plan / billing-period records, all listed; — means that period is not recorded. Uses daily regenerating Stamina (~150/day free) plus persistent Coins; paid plans include Standard VIP (~$9.99/mo), Pro (~$29.99/mo), and SVIP tiers detailed within account portals. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancellation and refund terms unverified SeaArt AI Official Homepage and Community ↗ · 2026-11-01 Capture 1 ↗ | Web free, weekly/monthly/annual subscriptions and expanded packs; excludes API · 2026-10-20 Plan · source date Monthly / one-time Annual bill / period Quota & limits Pro2026-10-20 ↗ USD 5.99/week Other period Other period 50 credits/week; 50 core-feature HD downloads/day Rules [1] Pro2026-10-20 ↗ USD 9.99/month USD 59.99/year Monthly 350 credits/month; 50 core-feature HD downloads/day Rules [1] Annual 350 credits/month; 50 core-feature HD downloads/day Rules [1] Max2026-10-20 ↗ USD 26.99/month USD 263.99/year Monthly 2,000 credits/month; 15,000 HD downloads/month Rules [1] Annual 2,000 credits/month; 15,000 HD downloads/month Rules [1] 300 credits2026-10-20 ↗ USD 12.99 · one-time payment Usage / one-time Usage / one-time 300 credits; 1 per removal; not for API Rules [2] 1,000 credits2026-10-20 ↗ USD 33.99 · one-time payment Usage / one-time Usage / one-time 1,000 credits; 1 per removal; not for API Rules [2] 5,000 credits2026-10-20 ↗ USD 65.99 · one-time payment Usage / one-time Usage / one-time 5,000 credits; 1 per removal; not for API Rules [2] 11,500 credits2026-10-20 ↗ USD 99.95 · one-time payment Usage / one-time Usage / one-time 11,500 credits; 1 per removal; not for API Rules [2] 30,000 credits2026-10-20 ↗ USD 269.99 · one-time payment Usage / one-time Usage / one-time 30,000 credits; 1 per removal; not for API Rules [2] 80,000 credits2026-10-20 ↗ USD 639.99 · one-time payment Usage / one-time Usage / one-time 80,000 credits; 1 per removal; not for API Rules [2] 13 plan / billing-period records, all listed; — means that period is not recorded. Actual annual charges $59.99/$263.99. A 3-day trial is offered; cancel before expiry to avoid charges. Exact daily free count is unspecified. The 11,500-credit pack includes a current 1,500-credit bonus. Cancellation, sources & verification recordCancel under My Orders; request refunds through official support, eligibility not separately verified. Official plans and usage terms ↗ · 2026-10-20 Capture 1 ↗ · Capture 2 ↗ · Capture 3 ↗ · Capture 4 ↗ |
| Free & trial allowance on the test date | ~150 daily Stamina refreshed every 24h (~3.6-4 Stamina per removal, allowing ~35-40 free removals daily) | Free logged-in users can download 1616×1616 'Free image' PNGs without credit deduction; full 2048×2048 HD requires Pro or 1 credit |
| Cancellation & refunds | Not verified | Cancel under My Orders; request refunds through official support, eligibility not separately verified. |
| Disclosure of costs & limits | Estimated cost clearly shown before triggering removal (4 Stamina, discounted to 3.6) | Clearly labels 'Free image 1616 x 1616px (Free)' vs 'HD image 2048 x 2048px (Pro)' in the Download modal (Screenshot ③) |
| Task quality | ||
| Measured fixture results | Edge error MAD: 0.0941 (Lower is better) · Global error SAD(k): 42.688 (Lower is better) · Foreground retention: 99.840% (Higher is better) · Background residue: 0.020% (Lower is better) | Edge error MAD: 0.0806 (Lower is better) · Global error SAD(k): 33.09 (Lower is better) · Foreground retention: 99.810% (Higher is better) · Background residue: 0.175% (Lower is better) |
| Fixture findings | Delivers 99.84% foreground recall and 0.02% background leak at 2048x2048, with natural boundary transitions, authentic Alpha channel, and zero watermarks. | Good separation of hair strands; slight warm residue remains below the ear, and free-tier size differs from the attached file. |
| Original historical observation | SeaArt demonstrated top-tier precision on anchor_bgremove_v1, preserving delicate curly hair strands (99.84% recall) with near-zero background residue (0.02% leak) at 2048x2048. | Top-5 Hair Matting Precision (`mad_band=0.0806`, `sad_k=33.09`): preserves fine curly hair flyaways with natural semi-transparent alpha gradients (`alpha_entropy=2.843`) and virtually zero background color halo; 99.81% foreground recall (`fg_recall=0.9981`) and only 0.175% background leak (`bg_leak=0.00175`). |
| Suitable uses · historical assessment | Designers and creators requiring ultra-high hair strand retention and full 2048px clean PNGs | E-commerce sellers and designers who want high-accuracy curly-hair cutouts (`1616×1616` free unwatermarked PNG) and don't mind signing in |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 2048 × 2048 · PNG · Check watermark record |
| Historical specification note · not an official maximum | 2048 × 2048 (100% original size transparent PNG, no watermarks) | 1616×1616 (Free Preview PNG · No Watermark) / 2048×2048 (HD Original · Requires 1 Credit / Pro) |
| Watermark observation | No watermark | None (Completely unwatermarked transparent RGBA PNG) |
| Batch & API | Single-image processing and gallery history management | Supports 30–100 image Bulk Edit on web, plus desktop app and commercial API |
| Recorded free-tier dimensions | 2048 × 2048 | 1280 × 1280 |
| Attached file dimensions | 2048 × 2048 · PNG | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 15.49s · End-to-end reference: 15.49s | Network-observed server wait: 6.12s · End-to-end reference: 16.17s |
| Date & fixture | 2026-11-04 · anchor_bgremove_v1 · US-West (California, AS2914) | 2026-10-16 · anchor_bgremove_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | Account required in this test | Account required in this test |
| Sign-in methods | Account required (Google SSO and email registration supported) | Requires Google / Apple / Facebook / Email login to download the free 1616×1616 PNG |
| Manual adjustment | Not verified | Built-in Refine (Keep/Erase brush), Light on, and Resize tools |
| Interaction observations | Not verified | Requires Google / Apple / Email login before downloading the free 1616×1616 cutout, and displays a Pro trial banner inside the download modal, though the free '1616 x 1616px Free' button works cleanly with one click. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | STAR CLOUD PTE. LTD. | Wangxu Technology Co., Ltd. (PicWish / Apowersoft) |
| Recorded origin | Not verified | Hong Kong / Shenzhen, China |
| Domain history record | Not verified | 2021–Present |
| Background & reputation assessment | Not verified | Developed by Wangxu Technology Co., Ltd. (Apowersoft / LightPDF / GitMind ecosystem, Hong Kong & Shenzhen), operating since 2021 with desktop, mobile, and API products. |
| External reputation record | Not verified | Mature visual AI suite specializing in e-commerce cutouts, hair-level alpha matting, and photo restoration. |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Google Tag Manager · Cloudflare · Stripe | Google Tag Manager · Bing BAT |
| Engineering & privacy assessment | Not verified | High-precision portrait alpha matting (`mad_band=0.0806`, Top-5 overall in our 17-tool benchmark, `fg_recall=99.81%`) completed in 6.12s server processing time. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 30 / 40 Transparent tiered download dialog (Screenshot ③): clicking Download clearly shows 'Free image: 1616 x 1616px (Free)' alongside 'HD image: 2048 x 2048px (Pro)', without injecting any watermark into the free 1616×1616 transparent PNG. | |
| Interaction restraint | 16 / 20 Requires Google / Apple / Email login before downloading the free 1616×1616 cutout, and displays a Pro trial banner inside the download modal, though the free '1616 x 1616px Free' button works cleanly with one click. | |
| Background & reputation | 21 / 25 Developed by Wangxu Technology Co., Ltd. (Apowersoft / LightPDF / GitMind ecosystem, Hong Kong & Shenzhen), operating since 2021 with desktop, mobile, and API products. | |
| Engineering & privacy | 13 / 15 High-precision portrait alpha matting (`mad_band=0.0806`, Top-5 overall in our 17-tool benchmark, `fg_recall=99.81%`) completed in 6.12s server processing time. | |
| Task quality | 58 / 65 Transition band error mad_band=0.0941 · Global SAD(k)=42.688 · Foreground recall 99.84% / Background leak 0.020% | 53.5 / 65 Transition band error mad_band=0.0806 · Global SAD(k)=33.09 · Foreground recall 99.81% / Background leak 0.175% |
| Deliverable specifications | 20 / 20 True Alpha channel (8/8); Max deliverable spec: 2048 × 2048 (100% original size transparent PNG, no watermarks) | 18 / 20 True Alpha channel (8/8); Max deliverable spec: 1616×1616 (Free Preview PNG · No Watermark) / 2048×2048 (HD Original · Requires 1 Credit / Pro) |
| Processing speed | 8 / 15 Network-observed server wait: 15.49s (API mode: async_verified; network upload 0s / end-to-end 15.49s shown for reference only, never penalized) | 12 / 15 Network-observed server wait: 6.12s (API mode: async_oss; network upload 10.05s / end-to-end 16.17s shown for reference only, never penalized) |
